What is OSB?
OSB is a wood based panel that's been engineered to work for you.
It's easy to use and superior in many cases to Plywood, particularly when the Ply doesn't carry the correct certified credentials. It's less expensive than many Ply equivalents too.
OSB stands for Oriented Strand Board. Super strong, consistent and defect free, it's made with three layers of...

OSB is primarily a panel for construction and is widely used for flooring, flat roof decking and wall sheathing but many other applications are possible. It's precision engineered to remove defects and give it a uniform structure, with excellent strength and moisture tolerance properties.
OSB/2Load bearing dry: for general purpose applications such as hoardings, packaging,...